COVID-19 is rampant, and many city has implemented the management of sealing control to cut off the source of communication, which has made logistics difficult. Jiujiuxin  emergency ventilator has a large delivery volume every day. Logistics companies often fail to take the  emergency ventilator away in time, resulting in a backlog in the company's warehouse. The walkway has also become a temporary storage place for waiting ventilators. I hope the epidemic will end and return to normal as soon as possible, so that jiujiuxin ventilator can be delivered to customers in time.